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US ZIP Code Profile

ZIP Code 78213
San Antonio, Texas

ZIP code 78213 is in San Antonio, located in Bexar County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 40,589. The estimated median adjusted gross income per tax return is $36,336, and about 3% of filers report $200,000 or more.

2020 Population
40,589
Census ZCTA
County
Bexar
FIPS 48029
Median income (est.)
$36,336
IRS SOI 2022
Land Area
8.003 mi²
+ 0.004 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CitySan Antonio, TX
CountyBexar County (FIPS 48029)
StateTexas (FIPS 48)
Metro Area (MSA)San Antonio-New Braunfels, TX Metro Area (41700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.516396, -98.52302
Land / Water Area8.003 mi² land · 0.004 mi² water

02Income & Economics

Distribution of the 18,340 individual tax returns filed in 78213 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
35.7%
$25K–$50K
31.6%
$50K–$75K
14.2%
$75K–$100K
7.0%
$100K–$200K
8.1%
$200K+
3.4%
The $200,000+ bracket accounts for 33% of 78213's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($36,336) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 78213's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,336
▲ 8.4%
Filers earning $200K+
3.4%
▲ 0.3 pt
Total filers
18,340
▼ 1.9%
GET /zipc/v2/zipcodes/78213/soi?year=… $32K 2020 $34K 2021 $36K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 78213 ZCTA.

2000
39,477
 
2010
40,396
▲ +2.3%
2020
40,589
▲ +0.5%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 78213. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 78213

San Antonio and its immediate neighbors, sorted by distance.

3 mi
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Distance from 78213 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number487980
City AliasesCastle Hills, San Antonio

07Frequently Asked Questions

What county is ZIP code 78213 in?

ZIP code 78213 is in Bexar County, Texas (county FIPS code 48029).

What city is ZIP code 78213?

The primary USPS city for 78213 is San Antonio, TX.

What metro area (MSA) is 78213 in?

78213 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78213?

The 2020 Census population of 78213 was 40,589 residents.

What is the median income in ZIP code 78213?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78213 is about $36,336, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.